Ключевые слова: adult, boy, caucasian, child, childhood, children, class, classroom, contemplation, cute, diversity, earth, education, ethnic, ethnicity, female, friend, friendship, girl, globe, happiness, happy, indoors, kid, learn, learner, learning, library, looking, people, person, positive, positivity, pupil, school, schoolboy, schoolgirl, showing, small, smile, smiling, standing, student, study, studying, think, thinking, world, young, youth,